7*2-7

The expression \( 7 \times 2 - 7 \) can be solved step by step:

1. First, multiply \( 7 \times 2 = 14 \).
2. Then, subtract \( 7 \) from \( 14 \): \( 14 - 7 = 7 \).

So, \( 7 \times 2 - 7 = 7 \).